PDF User Manual

NOTE: 

STOVE CAN BE INSTALLED AS A TOP OR

BACK FLUE APPLIANCE.

The Severn Stove is intended to provide space heating

only

. The appliance and burning rate are controlled by

the manual adjustment setting of the sliding levers only
at the bottom of each firedoor.

Rating

Space Heating

15kW (50,000 Btu/h)

For correct operation of the appliance, the height of the
chimney from its base should not be less than 5.5m and
terminate above the roof in accordance with current
Building Regulations and regional statutory requirements
as outlined in BS 6461 Parts 1 and 2.

The structural flue through the chimney should not be
less than 200mm diameter. Pargeted lined flues,
228mm x 228mm must be in sound condition, and any
internal offsets should not be less than 60

˚

 to the

horizontal. Check that the flue exit is not obstructed or
reduced in size.

IMPORTANT:

FAILURE TO OBSERVE THE

RECOMMENDED MINIMUM SIZES OR METHODS OF
FLUE CONNECTION MAY LEAD TO FUME EMISSION
INTO THE ROOM AND REDUCED BURNING RATES.

The internal and external condition of the chimney
should be checked 

before

the appliance is installed and

rectified where necessary to prevent air leakage or
porosity.

9/00 EINS 33742

Installation Instructions

for Freestanding

Severn Stove

Consumer Protection Act 1987

As manufacturers and suppliers of cooking and heating products, in
compliance with Section 10 of the Consumer Protection Act 1987,
we take every care to ensure, as far as is reasonably practicable, that
these products are so designed and constructed as to meet the
general safety requirement when properly used and installed. To this
end, our products are thoroughly tested and examined before
despatch.

IMPORTANT NOTICE:

Any alteration that is not approved by Aga-

Rayburn, could invalidate the approval of the appliance, operation of
the warranty and could also affect your statutory rights.

Control of Substances - Health & Safety
Important

This appliance may contain some of the materials that are indicated
below. It is the Users/Installers responsibility to ensure that the
necessary personal protective clothing is worn when

handling where applicable, the pertinent parts that contain any of the
listed materials that could be interpreted as being injurious to health
and safety, see below for information.

Firebricks, Fuel beds, Artificial Fuels - 

when handling use

disposable gloves.

Fire Cement

- when handling use disposable gloves.

Glues and Sealants

- exercise caution - if these are still in liquid

form use face mask and disposable gloves.

Glass Yarn, Mineral Wool, Insulation Pads, Ceramic Fibre,
Kerosene Oil 

- may be harmful if inhaled, may be irritating to skin,

eyes, nose and throat. When handling avoid inhaling and contact
with skin or eyes. Use disposable gloves, face-masks and eye
protection. After handling wash hands and other exposed parts.
When disposing of the product, reduce dust with water water spray,
ensure that parts are securely wrapped. 

SEVERN

PERFORMANCE

THE CHIMNEY

EXISTING CHIMNEYS

The flue through the chimney should be formed with
200mm diameter minimum moisture and acid resistant
liners to BS 1181 or precast linings as specified in the
current Building Regulations and Codes of Practice for
Chimneys and Flues BS 6461 Part 1 and BS 7566 Parts
1 to 4.
When repairing existing chimneys, it is recommended
that the Building Inspector be consulted before the
commencement of work with particular attention to the
chimney height and its termination.

NOTE:

THE CHIMNEY MUST BE SWEPT BEFORE

INSTALLATION.

The Chimney

The flue should not less than 200mm diameter and its
soundness confirmed by smoke testing or consulting
HETAS who will give advice on the test method.
Ensure the chimney liners are free of any internal
projections such as building jointing composition before
the appliance is installed. 

Factory-Made Insulated Chimney

It is recommended that the internal face of the chimney,
be refractory lined and otherwise comply with BS 4543
The recommended minimum diameter is 175mm.
Chimney manufacturers should be contacted for further
advice.

Chimney Terminations

All chimneys should terminate above the roof level in
accordance with current Building Regulations and
statutory requirements as outlined in BS 6461 Part 1
and BS 7566 Parts 1 to 4.
However well designed, constructed and positioned the
satisfactory performance of a flue can be adversely
affected by the downdraught caused by adjacent tall
buildings and trees or even nearby hill. These deflect the
wind creating a zone of high pressure over the terminal
causing it to blow directly down the chimney flue.
A suitable anti-downdraught terminal such as the

Marcone

will usually effectively combat low pressure

down-blow but no known cowl is likely to prevent
downdraught due to a high pressure zone.

NOTE:

ADVISE THE USER TO ENSURE THE CHIMNEY

FLUES ARE THOROUGHLY SWEPT AT A MINIMUM OF
12 MONTHLY INTERVALS AFTER THE APPLIANCE IS
COMMISSIONED.

The appliance and recess, hearth and chimney flue
installation should be in accordance with the current
Building Regulations and BS 6461 Part 1 and BS 7566
Parts 1 to 4.
The appliance can be installed in a fire resistant recess
in which the hearth must be level and together with the
adjacent walls, conform to the current Building
Regulations.
A rectangular recess is required, not less than 975mm
wide, not less than 350mm deep from the face of the
recess and 1320mm minimum height for a top flue
outlet appliance.
The clearance between the appliance and any
combustible material must be maintained as indicated in
Figs. 1a, 1b, 2a and 3.

A permanent unobstructed air vent is required having a
minimum effective area of 100cm

2

and communicating

directly to outside air or an adjacent room which itself
has a permanent air vent direct to outside air.

Effect of Extractor Fan

Avoid if possible, the installation of an extractor fan in
the same room as the appliance or the room where the
permanent vent is located.
Compensating extra air inlets must be introduced
equivalent to the capacity of the fan when fitted. 

In Fig. 1b the stove is installed in an existing recess
directly below the chimney flue. The exit end of the flue
pipe must extend a minimum of 150mm into the
overhanging brickwork. Any cavities or pockets above
the register plate should as far as possible be filled, with
the flue pipe exit extended into the throat of the
chimney.
If the flue liner or insulated chimney is used, the
diameter should not be less than 200mm in both cases.
Fig. 2b shows a back flue outlet into chimney
EXTENDED LENGTHS OF HORIZONTAL PIPEWORK
MUST BE AVOIDED AND ARE NOT RECOMMENDED,
AND SHALL NOT EXCEED 150mm.
In Fig. 3 the stove is connected to an existing brick flue
with a length of flue pipe. Square bends and horizontal
runs must not be used and a cleaning door included at
every bend.

NOTE:

WHATEVER METHOD OF INSTALLATION IS

UTILISED, AIR MUST NOT BE ALLOWED TO ENTER
THE CHIMNEY EXCEPT THROUGH THE STOVE AND
ALL JOINTS MUST BE AIRTIGHT. IF THE CHIMNEY IS
UNLINED AND THERE IS ANY DOUBT ABOUT ITS
CONDITION, IT SHOULD BE LINED IN ACCORDANCE
WITH CURRENT BUILDING REGULATIONS.
PROVISION MUST ALWAYS BE MADE FOR SWEEPING
THE CHIMNEY.

Important

Cement pipes and fittings must not be used within 2m
of the stove outlet. Chimneys of plain pipe are not
recommended but certain proprietary makes of insulated
chimney are suitable.

Handle the firedoors with care to ensure the glass

panels remain intact.

The stove is delivered fully assembled but all fire cement

joints should be examined for soundness and if necessary

re-sealed before installation.

1. Position the stove in required position relative to 

chimney flue and on non-combustible hearth ensuring

there is sufficient room allowed on stove R.H. side to

enable  operation of riddling tool.

Blank off and seal with cover plate, flue outlet not 

used.

2. Cut length of 150mm diameter pipe to suit chosen 

method of flue connection. Insert flue pipe spigot in 

stove outlet socket and caulk joint with soft rope and

cement.

3. Connect flue pipe to chimney with selected method.

4. Check that the bottomgrate reciprocates correctly 

and that the throat plate is correctly located/sealed.

2

PREPARATION OF

BUILDERS RECESS OPENING

AIR SUPPLY

FLUE LAYOUT

FLUE LAYOUT

3

975mm

a. When lighting , open both firedoors and place paper 

and sticks with a small quantity of fuel onto the 3 
bottomgrate. Ignite fuel and lock both firedoors with 
firedoor air slides fully opened i.e. air slide levers 
moved away from centre of firebox.

b. With the appliance under fire, check for soundness 

of seals/joints and that the flue functions correctly in 
permitting all smoke and fumes to be vented through
the chimney.

After completing the installation, the Heating Contractor
should demonstrate to the user, the operation of the fire
e.g. primary air setting lever, the method of riddling and
the lowering of the throat plate for cleaning purposes as
well as the routine flue cleaning method.

Ensure the Operating Instructions are left in the
possession of the user.

Weight of complete stove 227Kg

Bottomgrate bars - there are eight grate bars of one
type and seven of another.

The eight bars occupy the ends and intermediate
positions. The seven bars fit between these.

See that they are properly placed on the cross front
firebar and move freely when riddled.

Flue Pipe

Lengths of 150mm diameter black painted C.I. flue
pipes are available through your local stockists.

Replacement parts if required are available through your
local stockist.

4

GENERAL INFORMATION

COMMISSIONING

TESTING 

AFTER COMMISSIONING

With Aga-Rayburn’s policy of continuous product improvement, the
Company reserves the right to change specifications and make
modifications to the appliance described and illustrated at any time.

Manufactured By
Aga-Rayburn
Station Road, Ketley, Telford, Shropshire, TF1 5AQ

Telephone (01952) 642000

Fax (01952) 641961

For further advice or information contact
your local distributor/stockist

www.aga-rayburn.co.uk

www.agacookshop.co.uk